· Any impression, cut, gouge, etc. caused by
a tool coming into contact with another object
· Initial visual examinations will usually result in the identification
of the type of tool used only. It will NOT identify the specific tool
· The specific tool used can be determined due to wear, nicks,
and breaks to a tool as the result of use
· Unique grooves are pre-etched into the metal portions of a
tool during the manufacturing process. These grooves can help investigators
identify the specific tool used to commit a crime.